Port assembly for use with robotic devices and systems to perform single incision procedures and natural orifice translumenal endoscopic surgical procedures

Embodiments relate to surgical devices, systems, and methods. The system includes a port assembly and surgical arm assembly. The port assembly includes a main body having a main channel. The main channel includes a left channel portion, right channel portion, left anchor channel portion, and right anchor channel portion. The left channel portion is shaped in such a way that, when a surgical arm of the surgical arm assembly is inserted through the left channel portion, a movement of the surgical arm is restricted to be a movement within the left channel portion and along a first central axis. The right channel portion is shaped in such a way that, when the surgical arm is inserted through the right channel portion, a movement of the surgical arm is restricted to be a movement within the right channel portion and along a second central axis.